GUO Qiao-ling, CHEN Xin-hua, LIU Pei-wang, et al. Variation of Runoff and Influence of Human Activity Rate in Kuye River Basin[J]. Bulletin of Soiland Water Conservation, 2014, 33(4): 110-113.
DOI:
GUO Qiao-ling, CHEN Xin-hua, LIU Pei-wang, et al. Variation of Runoff and Influence of Human Activity Rate in Kuye River Basin[J]. Bulletin of Soiland Water Conservation, 2014, 33(4): 110-113. DOI: 10.13961/j.cnki.stbctb.2014.04.034.
Variation of Runoff and Influence of Human Activity Rate in Kuye River Basin
Based on historical records from two hydrological stations of Wangdaohengta and Wenjiachuan
the runoff variation characteristics and influence factors
which include runoff inter-annual variation characteristics
changing trend
precipitation change
and the impact of human activities
were analyzed by using different analyzing methods
such as Mann-Kendall trend analysis
R/S analysis
and double mass curve for annual rainfall stream flow. The results showed that the multi-year change of runoff had a distinctive decreased tendency
especially since the end of the 20th Century. The Hurst index were 0.853 and 0.803 for the Wangdaohengta and Wenjiachuan stations
respectively
which indicates that the decreasing trends of runoff in Kuye River would continue in the future.The rainfall and human activities had a different influence on runoff in different periods. During 1997-2010
the runoff descending proportions caused by the human activities are as high as 80.48% and 93.62% in Wangdaohengta and Wenjiachuan stations
therefor aggravating human activities were the main reason for runoff descending in Kuye River.
Yue S, Pilon P, Phinney B. Canadian streamflow trend detection:Impacts of serial and cross correlation[J]. Hydrological Science Journal, 2003,48(1):51-63.